Tirrell, D. and Grossman, S. and Vogl, O. (1979) Regular Copolyamides VII. Water Adsorption in Regular Copolyoxamides. Makromolekulare Chemie, 180 (3). pp. 721-736. ISSN 0025-116X. https://resolver.caltech.edu/CaltechAUTHORS:20150220-125915170
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Abstract
Water absorption at 93% relative humidity and 25°C was determined for 12 regular aliphatic/aromatic copolyoxamides. The equilibrium water absorption ranges from 7°C to 30%, varied with the polymer structure and is highest in polymers with high amide concentration. The water absorption is reversible and seems to consist of a two-step process, rapid absorption of water by polymer followed by a slower second stage as equilibrium is approached. These polymers have low crystallinity and the water absorption does not occur in crystalline regions. All water is bound to the polymer: it may be freed by heating the hydrated polymer above 100°C. but rebinds completely at room temperature.
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| Additional Information: | ©1979 Alber. Now owed by Wiley. Manuscript received: July 17, 1978. Article first published online: 12 Mar. 2003. This work was supported in part by a grant from the National Science Foundation Materials Research Laboratory. | |||||||||
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| Issue or Number: | 3 | |||||||||
| Record Number: | CaltechAUTHORS:20150220-125915170 | |||||||||
| Persistent URL: | https://resolver.caltech.edu/CaltechAUTHORS:20150220-125915170 | |||||||||
| Official Citation: | Tirrell, D., Grossman, S. and Vogl, O. (1979), Regular copolyamides, 7. Water absorption in regular copolyoxamides. Makromol. Chem., 180: 721–736. doi: 10.1002/macp.1979.021800316 | |||||||||
| Usage Policy: | No commercial reproduction, distribution, display or performance rights in this work are provided. | |||||||||
| ID Code: | 55057 | |||||||||
| Collection: | CaltechAUTHORS | |||||||||
| Deposited By: | Anne Hormann | |||||||||
| Deposited On: | 24 Feb 2015 00:34 | |||||||||
| Last Modified: | 03 Oct 2019 08:02 |
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